[HungryBear]

The old science designed a club head for less wind resistance.
The promotion of Hogan "speed slot" was an example of the theory of the day.
Todays heads are very large with expansive face area. Would seem to hold "lots" of wind.
What are the facts and the Numbers that support them?

The "old" British ball was 1.62 in min. diameter standard.
They are now 1.68 min?(I think).
I recall palmer getting 25-30 yards more carry with the driver in The Open. (With Persimmon I will note.)
When did the standard change?

The Bear